For a single electical box sinker off Screwfix a few weeks back. Did about 5
double sockets today before the shaft on it broke. Do I have to buy a whole
new EBS at another $40 or can I just replace the shaft bit?
The link is
Not very well :)
Basically you slap it on the end of your SDS plus drill with rotostop
engaged. You then proceed to slowly bash a square shaped groove in your
wall. Needs the middle bit cleaned out with a chisel after (though the
description don't meantion that)
Or maybe I was doing it wrong, but they failed to provide the
In uk.d-i-y, Robert Irwin <catfishpcAThotmailDOTcom> wrote:
I've never used one myself (current house has plasterboard, previous
house predates relative affluence leading to possession of SDS drill
- ring o' 5mm masonry-drill holes, cold chisel and lump hammer worked
well enough!). But my impression, backed up by a few words in the S'fix
cat, is that you're supposed to use a circular cutter *first* - which
they'll sell you separately as part 72224 for a mere 45 of your Earth
pounds - to cut away the bulk of the material, and a pilot hole deeper
than the box will be: only *then* do you swap to rotostop, mount the
74206 you just paid 40 quid for and use that to square off the round
'ole previously made.
The words in the (printed) catalogue - possibly absent from the Web! -
are, "Drill flat bottom square holes for electrical boxes in just 3
minutes. Even drills 6mm fixing hole. Square cutters for single and
double gang sockets. Re-designed circular cutter for more efficient,
faster drilling. Use 80mm Chisel after drilling circular hole in
very hard materials such as engineering block and concrete. For use
in breeze block, concrete block (up to 45 Newtons) and house brick.
Use with SDS Plus machines with rotary stop. Supplied with full
instructions." And then in tiny print, "single and double box
require Circular Cutter (Quote 72224) and Pilot Drill (Quote 10809)"
- the Pilot Drills are 1.23 per set of 5, so essentially consumable.
If you've been trying to do the whole job with the square box alone,
S'fix might not be quite so kind about sending you a replacement than
if it had failed after five holes when used as intended. You *could*
try arguing that you didn't get the "full instructions" which the
cat said would be supplied; and/or that the website gives none of this
info (if indeed it doesn't)! Maybe they'll be kind; maybe you can
convince them to let you have a new single box thrown in free if you
now buy a pack of pilot drills and the circular cutter? I've found
them usually very reasonable about this sort of thing, though maybe
it's the roguish Slavic charm and the immense influence I wield here
in uk.d-i-y that does it... yeah right!
Unfortunately, the EBS that I got was already opened with a sticker on it
saying - 'end of line, please restock' and absolutely no instructions.
I phoned them about this and another cockup they made with another part of
the order, and they told me what I described earlier in thread. (Before
anyone asks, they made good on the wrong bits they delivered.) Drilling a
circular hole first wouldn't make the slighest bit of difference anyway as
the EBS works by bashing (err, chiselling), not drilling. i.e. it goes
in/out, not round
Back to thread - can you get spare parts which clasp onto EBS sets like this
or do I need a new one?
"Robert Irwin" <catfishpcAThotmailDOTcom> wrote in message
I would think the makers would be able to supply new parts for their
products, so ask your supplier who supplies this item to them and then get
the part direct from them.
We only use tools similar to these:
because of problems we had with the square cutting tools.
On Sun, 18 Jan 2004 00:40:26 +0000, Robert Irwin wrote:
You should get a replacement.
The EBS is a fnacy chisel. The method that works best for me is to
alternate the use of a 50mm SDS chisel with the EBS. Forget the large
circular cutter it makes a lot of mess.
The EBS marks and makes the edge of the hole the other chisel does 90% of
the work within the mark.
Ed Sirett - Property maintainer and registered gas fitter.
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